The S2 cup is Phanpy wearable pumping in its lightest form: a quarter of a pound on the breast, a patented 97-degree flange angled the way a nursing baby actually latches, and a low profile that disappears under a shirt. It connects to the pump unit by a single tube and comes apart into four washable pieces.
At 0.25 lb per cup, the S2 hangs lighter in the bra than most of what it competes with — and grams matter when something sits on your chest for a twenty-minute session several times a day.
The flange meets the breast at 97 degrees, mimicking the downward angle of a latched baby rather than pointing straight out. That geometry seats the tissue more naturally, which mothers feel as less tugging and often see as better flow.
The whole cup strips down to four pieces, every one of them tolerant of boiling water and steam sterilizing. Wash-up after a session takes about as long as rinsing a coffee mug.
The cup is built for the Phanpy E-Rosy and works with the E-Shine system as well; a lanyard comes included for hanging it to dry or clipping it into a day bag. It stands upright on its base when you set it down full.
The S4 generation: slimmer 6 oz cups in a three-part design, with tubes for double pumping and inserts in the box.
